| Geyser | 1988-07-01 |
|---|---|
| Echinus | 0955, 1102, 1215, 1315, 1405, 1510, 1610 min, 1620 |
| Steamvalve Spring | 0749 ie, 1245 |
| Values for Old Faithful Area | 1988-07-01 |
|---|---|
| Astronomical Twilight Begin | 03:16 |
| Nautical Twilight Begin | 04:18 |
| Civil Twilight Begin | 05:06 |
| Sunrise | 05:42 |
| Sunset | 21:11 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:36 |
| Astronomical Twilight End | 23:37 |
| Moon Illumination | 97.17% |